D800e Red Oversaturation

Started Apr 15, 2013 | Discussions thread
Steve Bingham
Steve Bingham Forum Pro • Posts: 25,110
Re: D800e Red Oversaturation

Tony Beach wrote:

Steve Bingham wrote:

Tony Beach wrote:

michaeladawson wrote:

Randy Redford wrote:

I just printed my first image with the D800e -- shot raw and processed through ACR and PS (latest versions) and the reds are all way oversaturated to the point of almost being blown.

Have any of you had this issue?  Any advice would be greatly appreciated.

All I do know is that you have to be very conscious of the red channel because that is the one that will tend to blow out first.

This is very infrequently true.  The green channel blows out first far more often than the red channel.

As for your statement on the red channel being infrequently blown and the green MOST likely - well, I definitely disagree based on my past 30 years of blowing channels.  In fact, Velvia 50 had to be routinely rated at EI (exposure index) 64 instead of 50 - just as a matter of principal -to preserve the yellows.

Film is not digital, so referring to experience with film is absolutely irrelevant.  How about you show some proof of what you are claiming?  Here's some examples of what I routinely see:

I was referring to the yellow in Velvia simply as a way of saying that this "problem" (over saturation) has been around a long time.

So, just for grins, I downloaded your top flower picture and cropped it so I got only the flower. Then I looked at it using PS CS6 and a Histogram as well as Info. My histogram looked NOTHING like what you have incorrectly displayed nere. The red channel is pushed hard to the right with a ton of information  - as well as being blown. The yellow was also blown and pushed hard to the left with lots of 0-5 values (0 in blue channel means blown yellows). The  magenta channel, missing yellows and reds, was also left with many 0 values. The green channel, on the other hand, was perfect. No blown greens and a ton of room to spare! Of course even casual inspection should indicate this.

I don't know where you got your "charts" but they are dead wrong. Sorry for being so blunt.

I noticed on your web page you like animals and your Sony camera. Interesting.

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Steve Bingham

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